ST 4 TWIN Series Spring Terminal Block Supplier
United Machinery proudly supplies the Phoenix Contact ST 4 TWIN Series Spring Terminal Block (3031393) — engineered to deliver fast wiring, long-term reliability, and hassle-free installation across demanding industrial environments. We United Machinery, one of trusted name in this industry as ST 4 TWIN Series Spring Terminal Block Supplier in West Bengal, Bihar, Odisha, Chhattisgarh, Jharkhand, Maharashtra, Rajasthan, Haryana, Madhya Pradesh, Gujarat, Assam, Tripura, Andhra Pradesh, Meghalaya, Karnataka, Manipur, Tamil Nadu, Hyderabad and also Saudi Arabia and UAE.
Introduction to Our Product
The ST 4 TWIN Terminal Block – 3031393 features a dual connection spring system, allowing two conductors to be connected in a single terminal. This makes it ideal for applications requiring looping, signal distribution, and compact wiring designs without compromising performance. Built with Phoenix Contact’s renowned spring-cage technology, this Terminal Block ensures consistent clamping force without tightening screws — providing a maintenance-free and time-efficient wiring solution.
Quality Variants Available
Model | Type |
ST 4-TW IN BU | Blue – Neutral Line |
ST 4-TWIN-PE | Green/Yellow – Protective Earth |
ST 4-TW IN BK | Black – Signal / Standard |
ST 4-TWIN RD | Red – Positive Line |
Phoenix Contact 3031403 ST 4 Series Blue, 0.08 → 6mm², Spring Clamp Termination, ATEX, IECEx
Feed-through terminal block, nom. voltage: 800 V, nominal current: 32 A, number of connections: 3, connection method: Spring-cage connection, Rated cross section: 4 mm2, 1 level, cross section: 0.08 mm2 – 6 mm2, mounting type: NS 35/7,5, NS 35/15, color: blue
Phoenix Contact 3031416 ST 4-TWIN-PE Series Green/Yellow, Single-Level, Spring Clamp Termination
Protective conductor terminal block, number of connections: 3, number of positions: 1, connection method: Spring-cage connection, Rated cross section: 4 mm2, cross section: 0.08 mm2 – 6 mm2, mounting type: NS 35/7,5, NS 35/15, color: green-yellow
Phoenix Contact 3037407 ST 4 Series Black, 0.08 → 6mm², Spring Clamp Termination, ATEX, IECEx
Feed-through terminal block, nom. voltage: 800 V, nominal current: 32 A, number of connections: 3, connection method: Spring-cage connection, Rated cross section: 4 mm2, 1 level, cross section: 0.08 mm2 – 6 mm2, mounting type: NS 35/7,5, NS 35/15, color: black
Phoenix Contact Feed Through 3 Position Red Terminal Block Connector CLIPLINE ST Series, 3037371
Feed-through terminal block, nom. voltage: 800 V, nominal current: 32 A, number of connections: 3, connection method: Spring-cage connection, Rated cross section: 4 mm2, 1 level, cross section: 0.08 mm2 – 6 mm2, mounting type: NS 35/7,5, NS 35/15, color: red
Key Features of ST 4 TWIN Spring Terminal Block
Feature | Benefit |
Spring-Cage Connection | Fast installation with no torque tightening required |
Twin Conductor Entry | Supports wiring loops and signal branching |
High Current & Voltage Capacity | Ensures stable and safe electrical operation |
Compact Modular Design | Saves panel space while enhancing wiring layout |
Color-coded availability | Helps simplify circuit identification and troubleshooting |
Maintenance-free installation | No re-tightening needed even in high-vibration environments |
Where Can We Use This Product?
The ST 4 TWIN Series Spring Terminal Block is perfect for applications requiring safe and compact wiring, including:
- Control & Automation Panels
- Motor Control Centers (MCC)
- PLC Wiring & Distribution
- Building Automation Systems
- Power Distribution Boards
- Instrumentation Wiring
- Renewable Energy Installations
Industrial Applications
This terminal block is widely used in:
- Oil & Gas Plants
- Steel & Metal Industries
- Railways & Metro Signaling
- Food & Beverage Industry
- Power Generation & Substations
- Pharmaceuticals & Packaging Lines
- Water Treatment and Pump Control Systems
Affordable Without Compromising Quality
You get a premium Phoenix Contact product backed by expert service and reliable supply support. United Machinery ensures a perfect balance of:
- Best-in-class product durability
- Proven international performance standards
- Competitive industry pricing
We supply ST 4 TWIN Series to:
- West Bengal
- Bihar
- Odisha
- Chhattisgarh
- Jharkhand:Ranchi
- Maharashtra:Mumbai, Pune, Nagpur, Aurangabad
- Rajasthan:Jaipur
- Haryana:Faridabad
- Madhya Pradesh:Bhopal, Indore
- Gujarat:Ahmedabad, Surat, Vadodara
- Assam
- Tripura:Agartala
- Andhra Pradesh:Visakhapatnam
- Meghalaya
- Karnataka:Bengaluru
- Manipur:Imphal
- Tamil Nadu:Chennai, Coimbatore
- Hyderabad
- International Supply:
- Saudi Arabia:Al Jubail, Jeddah, Riyadh, Al Khobar
- UAE:Abu Dhabi, Dubai, Ruwais, Umm Al Quwain
Why Choose United Machinery?
- Authorized & trusted supplier of Phoenix Contact products
- Ready stock availability with fast dispatch
- Expert technical support and after-sales assistance
- Competitive pricing without compromising quality
- Supply capability across PAN India & Middle East markets
Contact Us
Looking for a reliable ST 4 TWIN Series Spring Terminal Block Supplier?
Get in touch with United Machinery Corporation today for pricing, bulk orders, and technical support.
Phone Number – +91 90732 37992
Email Id – onlineumc9@gmail.com
Call or Email us now to discuss your requirements and get the best supply solutions.
